usb_buffer_free和usb_buffer_alloc的编译错误

Question

嗨，我在将usbtouchscreen.c编译到内核驱动程序时出错。 我也将usbtouchsreen.c文件附加到了帖子中。

 CC      drivers/input/touchscreen/usbtouchscreen.o
drivers/input/touchscreen/usbtouchscreen.c: In function 'usbtouch_free_buffers':
drivers/input/touchscreen/usbtouchscreen.c:856: error: implicit declaration of function 'usb_buffer_free'
drivers/input/touchscreen/usbtouchscreen.c: In function 'usbtouch_probe':
drivers/input/touchscreen/usbtouchscreen.c:890: error: implicit declaration of function 'usb_buffer_alloc'
drivers/input/touchscreen/usbtouchscreen.c:891: warning: assignment makes pointer from integer without a cast
make[3]: *** [drivers/input/touchscreen/usbtouchscreen.o] Error 1
make[2]: *** [drivers/input/touchscreen] Error 2
make[1]: *** [drivers/input] Error 2
make: *** [drivers] Error 2

我在此处包含了源代码： http : //pastebin.com/GTsic7Bg

Answer 1

您的驱动程序是否很旧（或者对于较旧的内核而言）？ 也许您想看一下这个重命名：

https://lkml.org/lkml/2010/4/12/132

它似乎至少在最新的内核中：

http://lxr.linux.no/linux+ * / drivers / usb / core / usb.c＃L698

实际上，它似乎已经进入了2.6.34左右。